<html xmlns="http://www.w3.org/1999/xhtml"><head><meta charset="UTF-8" /><title></title><meta name="Generator" content="PowerTools for Open XML" /><style>span { white-space: pre-wrap; } p.s73a9eec8-352f-4840-8f3f-7deeef766c9dP0 { margin-top: 0; margin-bottom: 0; margin-left: 0; margin-right: 0; text-indent: 0.00in; text-align: justify; background: white; font-family: Times; font-size: 12pt; line-height: 108%; } span.s73a9eec8-352f-4840-8f3f-7deeef766c9dC0 { background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000000 { color: #0000FF; background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000001 { background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s73a9eec8-352f-4840-8f3f-7deeef766c9d000002 { background: white; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000003 { background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000004 { color: #0000FF; background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } </style></head><body><div><p dir="ltr" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dP0"><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">    </span><a href="https://sdlegislature.gov/Rules?Rule=74:36:07:20"><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000000">74:36:07:20</span></a><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000001">.  Standards of performance for metallic mineral processing plants.</span><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0"> The standards of performance for metallic mineral processing plants are those in 40 C.F.R. </span><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">Part </span><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">60</span><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">, Subpart LL</span><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0"> (July 1, 20</span><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">24</span><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">).</span></p><p dir="ltr" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dP0"><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9d000002"> </span></p><p dir="ltr" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dP0"><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">    </span><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000001">Source:</span><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0"> 11 SDR 151, effective May 12, 1985; 13 SDR 129, 13 SDR 141, effective July 1, 1987; 14 SDR 72, effective November 24, 1987; 17 SDR 170, effective May 13, 1991; transferred from § 74:26:21:02, 19 SDR 157, effective April 22, 1993; 21 SDR 119, effective January 5, 1995; 23 SDR 106, effective December 29, 1996; 30 SDR 26, effective September 1, 2003; 31 SDR 101, effective January 2, 2005; 32 SDR 209, effective June 13, 2006; 33 SDR 217, effective June 13, 2007; 36 SDR 207, effective June 28, 2010; 39 SDR 219, effective June 25, 2013; 42 SDR 52, effective October 13, 2015</span><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000003">; 44 SDR 43, effective September 13, 2017; 46 SDR 64, effective November 25, 2019</span><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000003">; 52 SDR 27, effective September 17, 2025</span><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">.</span></p><p dir="ltr" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dP0"><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">    </span><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000001">General Authority:</span><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-6"><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000004">34A-1-6</span></a><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">, </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-18"><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000004">34A-1-18</span></a><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">.</span></p><p dir="ltr" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dP0"><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">    </span><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000001">Law Implemented:</span><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-18"><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0-000004">34A-1-18</span></a><span class="s73a9eec8-352f-4840-8f3f-7deeef766c9dC0">.</span></p><p dir="ltr" class="s73a9eec8-352f-4840-8f3f-7deeef766c9dP0"><span xml:space="preserve" class="s73a9eec8-352f-4840-8f3f-7deeef766c9d000002"> </span></p></div></body></html>